You’ve probably already heard of the popular EGR valve, the anti-pollution valve. It is not generally appreciated by motorists because it has a tendency to develop more concerns than anything else… In fact, based on the use you are going to make of your automobile, it can become clogged and trigger you a lot of complications. If this is the case, you are probably wanting to know how to clean the EGR valve of your Mercedes Benz GLC Class ? Don’t get worried, we’ve well prepared this article content to help you with this process. To do so, we will initially look at the intent of the EGR valve, then what are the failures that the EGR valve of your Mercedes Benz GLC Class can reason and finally the part that will probably appeal you the most, how to clean the EGR valve Mercedes Benz GLC Class?

clean-egr-valve-mercedes-benz-glc-class

How to Clean your Mercedes Benz GLC Class EGR Valve: Role and Operation

Goal of the EGR valve

The EGR valve of your car has been integrated to diesel engines primarily to lower pollution emitted by cars and to fulfill EURO specifications on Mercedes Benz GLC Class . It will as a result control the quality of exhaust gas output and get rid of toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we learn how to clean the EGR valve on your Mercedes Benz GLC Class , we will examine how it operates. As seen just before, its task is to clean the exhaust gases, so it will be located at the engine outlet, thanks to a valve, it will be able to return the unburned exhaust gases to the engine for a second burn which will get rid of all unburned toxic particles. It will work mainly at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Mercedes Benz GLC Class EGR valve: Identifying faults

The EGR valve, nevertheless very important to limit the pollution emissions of your Mercedes Benz GLC Class , will sadly tend to clog up because of soot/gas deposits that will accumulate in its mechanism, which will eventually risk obstructing the functions of the valve, until completely blocking the engine motor, here are the signs of illness that a defective EGR valve on your Mercedes Benz GLC Class can provoke:

  • Motor light on
  • Performance loss
  • Technical inspection refused
  • Black gases
  • Vehicle that grazes at low speed
  • Low RPM settings

How to clean your Mercedes Benz GLC Class EGR valve: In practice

And now we’ll start the part you are most interested in, how to clean the EGR valve of your car. Here are the two methods that you can use.

Do it yourself

How to clean your Mercedes Benz GLC Class EGR valve system: Without dismantle

Despite the fact this methodology is less effective, it is however possible to consider a “rough” cleaning of your EGR valve, in reality, you will only need to use fuel additives, equivalent to the products used to clean the injection. These particular solutions must be injected into the running engine, at the right operating temperature, diluted in about 20 litres of fuel and run the engine for 3 or 4 minutes in high rev to clean the EGR valve of your Mercedes Benz GLC Class.

How to clean your car EGR valve: With disassembly

Here is the most reliable methodology, which will require sufficient access to the EGR valve to conduct the process on your own. If so, the procedure is fairly straightforward. You will need to disconnect the electromagnet from the EGR valve, remove the few screws that hold it in place, and remove it. Once these guidelines are achieved, now comes the time for cleaning. To achieve this, you will need to use a product such as solvent, petrol, oven cleaning product, which you will leave to act for ten minutes, then scrape off the rest using a scraper, finish cleaning with wire brush. If you want to go further, you can even clean the two conduits on which it is connected which may be scorched, for this, use a scraper and a vacuum cleaner to avoid dropping deposits in the conduits. You will only have to reassemble it and you will have finished cleaning the EGR valve of your Mercedes Benz GLC Class.

Have it done by a professional

If, your EGR valve is not accessible because of the series or the engine of your car and if removing it would cause too many troubles (removing too many auto parts that hinder access for example), how to clean the EGR valve of your Mercedes Benz GLC Class? In this instance, it would be better rather than launching yourself into an overly complex process, you turn to an auto mechanic. He will be able to carry out the job more cleanly and will be able, if necessary, to change the valve if it is dead. The cost of cleaning based on the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Mercedes Benz GLC Class

At last, some people make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their Mercedes Benz GLC Class, they just choose to block it in the closed position. This treatment will have the effect of greatly increasing the pollution emitted by the automobile, of no longer complying with pollution requirements, of having an engine warning light all day on and in the end risk fouling the engine. We strongly suggest against making this choice. If you have other questions or want to learn more about your car, don’t be reluctant to check out our dedicated page.

To find more tips on the Mercedes Benz GLC Class, take a look at the Mercedes Benz GLC Class category.